luminosity

英 [ˌluːmɪˈnɒsəti]

美 [ˌluːmɪˈnɑːsəti]

n.  (恒星等的)光度，亮度; 发光; 发亮

复数：luminosities　

TOEFL计算机

BNC.25798 / COCA.17466

柯林斯词典

• N-UNCOUNT （恒星等的）光度，亮度
  Theluminosityof a star or sun is how bright it is.
  1. For a few years its luminosity flared up to about 10,000 times the present-day luminosity of the Sun.
     它的亮度有几年一度达到了现在太阳亮度的一万倍左右。

英英释义

noun

• the quality of being luminous
  1. its luminosity is measured relative to that of our sun
  Synonym:brightnessbrightness levelluminanceluminousnesslight

双语例句

• The particle size is homogeneous with characteristics of high hardness, strong grinding force, rapid polishing, high efficiency and light luminosity.
  产品粒度均匀，具备硬度高，磨削力强，抛光快，效率高，光度亮等特点。
• Lightness: That property of a colour that distinguishes how intense its hue is, e.g. distinguish a light blue from a dark blue or a red from a pink. See also Luminosity, Value.
  明度：区别色相明暗的颜色特性，例如浅蓝与深蓝或红色粉红色的区别。
• Mysterious patterns of luminosity glowed in the night.
  神秘的光体图案在黑夜中闪亮。
• With continued use, skin appears transformed as it recaptures youthful firmness and luminosity.
  持续使用，皮肤会出现转变，因为它夺回青春的坚定性和亮度。
• In this paper, we investigate the relation between the redshift distribution and the luminosity function of extragalactic objects.
  在本文中，我们研究河外天体的红移分布和它们的光度函数之间的关系。
• As you can see, I've picked up an area with almost no changes in colors and luminosity.
  正如你所看到的，我已经选择了一个领域，几乎没有任何变化，颜色和亮度。
• As soon as the contracting cloud becomes opaque to its own infrared radiation, its luminosity will drop abruptly.
  一旦收缩云变得对它的红外辐射不透明时，它的光度便要急剧地降低。
• Besides, active power generation of these plans depends on the luminosity, which is very variable during day time.
  此外这些电厂所发出的有功功率决定于天气的亮暗度，而其在白天变化是很大的。
• W hat a showing it was! These unprecedented energy and luminosity values impose new and stringent requirements on the machine design and performances.
  这种前所未有的能量和亮度给设计与运行带来了严酷的考验。
• Pattern recognition method for wear mode of diesel engine based on the fuzzy clustering Modal identification of luminosity signals in frequency domain
  基于模糊算法的柴油机磨损模式识别光度信号的频域模式识别方法研究